21293478

素因数分解:

$2^1\times 3^2\times {\mathrm{257}}^1\times {\mathrm{4603}}^1$

素因数の和:4868

約数の個数: 24

約数和(自身を含む): 46325448

約数和(自身を除く): 25031970

約数列:

[1, 2, 3, 6, 9, 18, 257, 514, 771, 1542, 2313, 4603, 4626, 9206, 13809, 27618, 41427, 82854, 1182971, 2365942, 3548913, 7097826, 10646739, 21293478]

約数ペア:

[(1, 21293478), (2, 10646739), (3, 7097826), (6, 3548913), (9, 2365942), (18, 1182971), (257, 82854), (514, 41427), (771, 27618), (1542, 13809), (2313, 9206), (4603, 4626)]